Cisco UCS-MR-1X162RU-A Datasheet download pdf (Page 12)

Cisco UCS B200 M4 Blade Server

CONFIGURING the SERVER

Choose DIMMs and Memory Mirroring

Select the memory configuration and whether or not you want the memory mirroring option.

The supported memory DIMMs and the mirroring option are listed in

Table 4.

The supported memory DIMMs in the UCS B200 M4 are listed in Table 4

Supported Configurations

(1) 1-CPU configuration without memory mirroring:

■ Select from 1 to 12 DIMMs. Refer to DIMM Population Rules on page 41 for more detailed

information.

NOTE: When memory mirroring is enabled, the memory subsystem simultaneously

writes identical data to two adjacent channels. If a memory read from one of the

channels returns incorrect data due to an uncorrectable memory error, the system

automatically retrieves the data from the other channel. A transient or soft error in

one channel does not affect the mirrored data, and operation continues unless there

is a simultaneous error in exactly the same location on a DIMM and its mirrored

DIMM. Memory mirroring reduces the amount of memory available to the operating

system by 50% because only one of the two populated channels provides data.

Table 4 Available DDR4 DIMMs

Product ID (PID) PID Description Voltage

Ranks

/DIMM

DIMM Options

UCS-MR-1X648RU-A

Notes...

1. Power capping is not supported when using 64GB TSV-RDIMMS.

64GB DDR4-2133-MHz TSV-RDIMM/PC4-17000/octal rank/x4 1.2 V 8

UCS-ML-1X322RU-A 32GB DDR4-2133-MHz RDIMM/PC4-17000/dual rank/x4 1.2 V 2

UCS-ML-1X324RU-A 32GB DDR4-2133-MHz LRDIMM/PC3-17000/quad rank/x4 1.2 V 4

UCS-MR-1X162RU-A 16GB DDR4-2133-MHz RDIMM/PC3-17000/dual rank/x4 1.2 V 2

UCS-MR-1X081RU-A 8GB DDR4-2133-MHz RDIMM/PC3-17000/single rank/x4 1.2 V 1

Memory Mirroring Option

N01-MMIRROR Memory mirroring option

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Cisco UCS-MR-1X162RU-A Datasheet Page 12